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AnomAlert

AnomAlert

AnomAlert Motor Anomaly Detector is a system of software and networked hardware that continuously identifies faults on electric motors and their driven equipment. AnomAlert utilizes an intelligent, model-based approach to provide anomaly detection by measuring the current and voltage signals from the electrical supply to the motor. It is permanently mounted, generally in the motor control center and is applicable to 3-phase AC, induction or synchronous, fixed or variable speed motors.

AnomAlert detects electrical faults and some mechanical faults, providing a diagnostic solution in situations where dedicated vibration monitoring is not practical or economical. For example, it can detect changes in the load the motor is experiencing due to anomalies in the driven equipment or process such as cavitation or plugged filters and screens. Since it doesn't require any sensor installation on the motor itself or associated load, AnomAlert is especially attractive for inaccessible driven equipment and is applicable to most types of pumps, compressors, and similar loads.

Each motor requires one AnomAlert,a network connection, and current and potential transformers. It can be configured entirely from the front panel. Additionally, each AnomAlert includes the AnomAlert Software necessary to obtain and display data in real-time from the device, to configure the performance of the device, and to save and subsequently retrieve data for display from its database. Networking protocols enable monitoring of motors and processes on remote machines using TCP/IP protocols over the Ethernet.

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Features & Benefits

Features & Benefits

  • Requests corrective action when needed
  • Low installation cost by utilizing existing potential and current transformers when available
  • Enables more flexible application of technologies to support condition monitoring program
  • Less plant personnel time required to support condition monitoring program
  • Energy efficiency optimization through correct power factor and load balancing
  • Enables remote diagnostic service capabilities 
  • Small hardware footprint with simple user display
  • Increased machine availability from improved maintenance planning and fewer unexpected outages
  • Low cost condition monitoring of difficult-to-access motors

 

Applications

AnomAlert is well-suited for rolling element bearing motors and driven loads for a variety of applications, including:

  • Cryogenic motor-pump
  • Submerged
  • Nuclear
  • Offshore
  • Remote Locations
  • Hazardous Areas
  • Fin Fans

 

Technology

How It Works

The AnomAlert hardware contains a library of motor operation characteristics.  It begins its condition monitoring with an initial "learn" phase where it compares the input signals against these models and uses the values to tune its anomaly detection algorithms.  If measured parameters deviate from calculated expected values, the monitor provides an early warning that something is wrong. In this way, it can detect pre-existing faults in the motor and driven equipment.

how-anomalert-works

After the initial learn mode is completed, AnomAlert begins the monitoring mode, where the system looks for any changes which would indicate that there is a degradation in the electrical or mechanical system. It provides recommended troubleshooting and corrective actions based on the faults that are indicated by the detected symptoms.

 

Where It Works

The AnomAlert monitor is typically installed in electrical distribution cabinets near the electrical transducers (current and potential transformers) that provide the signals it monitors.  It accommodates synchronous and induction motors, including those with variable frequency drives.  The monitor is not applicable for single phase, DC, or stepper motors or motors which operate with continual rapid speed changes.

Where_AnomAlert_Works

AnomAlert is especially effective when the motor-driven machine to be monitored is either installed in an inaccessible location, or in an area of the plant where there are personnel hazards that prevent safe and easy inspection (due to cryogenic fluids, hazardous atmosphere, high radiation, etc.).  Another advantage of the AnomAlert monitor is that the required current and potential transducers can be installed in the electrical distribution switchgear that supplies the power to the motor – rather than physically on the motor itself, as is the case with many other types of sensors.

 

Why It Works

The most effective programs combine several different technologies that are sensitive to the identified failure modes for the particular asset being monitored.  Data from the different sources is correlated in a collaborative environment, and provides a much better certainty that asset condition is understood accurately.  When combined with other appropriate techniques, (such as vibration monitoring, lubrication analysis, precision maintenance, and infrared thermography), the AnomAlert monitor can be part of an effective world-class Proactive-Centered Maintenance (PCM) program.

 

Media Gallery

Videos

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AnomAlert Animation

Specifications

General Information

Motor Type 3-phase, AC (not suitable for DC motors)
Fixed speed (line driven)
Variable speed (inverter driven)
Motor current load variation must be less than 15% during 6 sec data acquisition period
Not for use with soft-starter systems unless they are automatically bypassed immediately after motor start-up and during subsequent use
Operation Type Continuous

Environmental

Operating Temperature 32 – 104°F (0 – 40°C)
Humidity Up to 90% RH, non-condensing

Inputs

Power Input Required Use UL listed fuse with proper voltage rating:
100-240 Vac (-15%, +10%), 47 – 64 Hz, 19 VA, 200 mA
or 120-300 Vdc, 19 VA, 200 mA

Measurement Voltage Inputs

NOTE: Voltage transformers must meet local standards and regulations. For North America, current and voltage transformers must be certified by an OSHA appointed NRTL to appropriate product safety standards such as UL, CSA, ANSI and/or ASTM.

Low Voltage AnomAlert Models (less than 500 Vac) Can tap directly off voltage lines to motor
High Voltage AnomAlert Models (> 500 Vac) 3 Voltage Transformers (supplied by customer): Class 0.5 with 100 V, 110 V, or 120 V secondary voltages

Measurement Current Inputs

NOTE: Voltage transformers must meet local standards and regulations. For North America, current and voltage transformers must be certified by an OSHA appointed NRTL to appropriate product safety standards such as UL, CSA, ANSI and/or ASTM.

Fixed Speed (Line Driven) AnomAlert Models 3 Current Transformers (supplied by customer): Class 0.5, with either 5A or 1A secondary depending on AnomAlert model, secondary to be SELV
Variable Speed (Inverter Driven) AnomAlertModels 3 Hall-effect Current Sensors (supplied by customer): selected based on the power of the motor to be monitored; connected in series with the motor power cables.
Note: Hall-effect Current Sensors need external power sources, generally installed in the motor control panel, too.

Outputs

Alarms

4 Alarm Parameters Line Change (unexpected change in incoming power)
Load Change (unexpected change in process)
Existing Faults
Developing Faults
Warnings Any measured or calculated parameter outside its expected range based on internal data base and learned mode
Relay One assignable relay output, user programmable; NC/NO contacts
Communications RS422/485
RS232 (with additional appropriate converter)
Ethernet (with additional appropriate converter)
Physical Weight Line: 2.58 lb (1170 g)
Inverter: 2.16 lb (980 g)
Dimensions WxHxL 3.78 in x 3.78 in x 5.51 in (96 mm x 96 mm x 140 mm)
Mounting Front Panel Mounting (indoor
Protection Class Front Panel: IP 40
Whole Unit: IP 20
Indicators 6 LEDs and LCD Readout
Keypad 6 tactile membrane keys

Compliance & Certifications

EMC Europe:
EMC Directive 2004/108/EC
EN 61000-6-2 Immunity for Industrial Environments
EN 55011 EMC Emissions
Electrical Safety Europe:
Standard EN 60950
North America:
UL Listed, Canada and US
Standard UL 61010
Australia / New Zealand:
C-Tick

Download


Descriptions English
AnomAlert Fact sheet acrobat-reader
AnomAlert Generator Anomaly Detector Datasheet acrobat-reader
AnomAlert Motor Anomaly Detector Datasheet acrobat-reader
AnomAlert: Under the Hood Technical Paper acrobat-reader


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